Press for ice-machines.



D. L. HOLDEN.

PRESS FOR IGE MAGHINBS. APPLIOATION FILED MAR. 27. 1911.

1,054,772, Patented Mar. 4, 1913 m '1 snnntrs-snnnr 1. l b i O l rz: 1 b

1 1 u I N l1 N l i 1 N T M E m m R E m D..L. HOLDEN. FEE-SS FOB. ICE MACHINES. APPLICATION 111.1111 MAR. 27. 1911.

Patented Mar.'4, 1913.

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, WITNESSES I INVENTOR W APPLICATION rum) MAR. 21, 1911. I 1,054,772. Patented Mar. 4, 1913,

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n. L. HOLDEN.

PRESS FOR 1013 MACHINES.

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PRESS FOR ICE MACHINES.-

APPLICATION FILBDMAB. 27. 1911 1 054 772 Patented Ma'r.4, 1913.

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WITNESS .S v [N I'EN TOR D. L. HOLDEN.

PRESS FOR ICE MACHINES.

APPLICATION FILED MAR. 27. 1911.

Patented Mir. 4, 1913.

7 SHEETS-SHEET 7.

WITNESSES gym.

UNITED ST ES PA ENT OFFICE.

DANIEL L. HOLDEN, or wYoEK, N. Y., ASSIGNOR T0 FEDERAL IoE MACHINE COMPANY, A CORPORATION or MAINE.

PRESS FOR ICE-MACHINES.

Specification of Letters Patent.

Patented Mar. 4, 1913.

Application filed March 27, 1911. Serial No. 617,315.

To all whom it may concern:

and I do hereby declare the following to be a full, clear, and exact de cription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

1910 Serial No. 569,796.

To this end my invention comprises valveless press cylinders, a feed governed automatically by the pressure of the commingled spicules and water in a press cylinder actingupon the flowing column in the feed-pipe, and certain combinations and details of construction, more particularly set forth inthe claims hereto appended.

In the drawings Figure 1 represents a top plan View of the presses and motors. Fig. 2 is a central vertical section throughone of the presses and one ofthe motors with the valve mechanisms showing in full lines. Fig. 3 is a vertical section of one of the valve mechanisms on the line 3-3 of Fig. 4. Fig. 4 is a transverse section of oneof the valve mechanisms. Fig. 5 is a section of the valve casing on the line 5-5 of Fig. 4. Fig. 6 is a plan View of the bottom of the press. Fig. 7 is a plan view of the top of the press.

Fig. 8 is a cross-section of one of the presses. I

Fig. 9 is a plan view illustrative of the top and bottom perforated lining plates of the presses. Fig. 10 is a. plan view illustrative i annular chamber 42. At each side of this i port or annular chamber is an annular port is a front elevation of the end gate." Fig. 13 is a diagrammatic view showing the piping of a side perforated lining plate. Fig. 11 is a side elevation of the end gate. Fig. 12

connections. Fig. 14 is a partial front elevation showing the piping connections between the means for producing the ice-spicules and the presses and the location of the ice-pressure gage.

20 represents a skeleton base on which rest fi e motors and the presses, as shown in In the arrangement shown in Fig. 1, there are two motors 21 and two presses 22. Each motor 21has atthe forward end heavy lugs 23 and each press has at the forward end heavy flanged lugs 24, the two heads being connected by tic-rods 25. At the forward end each motor has also the customary flanged and recessed head 26.

lVithin the cylinder of each motor 21 opcrates a. piston 27 which, through a rod 28, operates a plunger 29, one in the cylinder of each press 22. The plunger 29 has, preferably, a wood and rubber packing 30 as indicated.

. Each motor cylinder 21 has at each end an inlet and outlet pipe 31, operating in one movement to permit the entrance of the motive fluid and in the opposite movement the discharge of the motive fluid. The mo tive fluid is governed by means of a valve mechanism which, as'a whole, is designated by the numeral 32. These valve mechanisms are located at the forward end of the motors and between them on a web 33 are supported two other identical but smaller valve casings 34.

The description of one of the valve casings is the description of the others, The valve casing comprises two heads 35, 36, clamping between them a ported casing 37 The casing has a. central supply port 38, a discharge port 39, and two ports 40, 41, which alternately serve as supply and discharge ports. The relation of these ports is illustrated in Fig. 4. it being understood that the port 41 is behind the port 40, as shown in 4. The supply port 38 communicates in the usual manner with a continuation thereof in the form of a central port. or

; from the press-motor ends or the valve cyli inder ends, as the case may be. The general tral supply port to pass through the sup-.

ply port on one side leading to one end of the cylinder, while a movement in the other direction will .open the other supply port leading to the other end of the cylinder. The valve playing back and forth connects the supply ports for one side and at the same time opens the discharge at the other end of the valve casing; and reverses the function when moved in the opposite direction.

Each motor cylinder has at its forward end a drain pipe 50, through which the motor may be emptying when it is idle.

Each press bears a cap-plate 51 secured by a series of bolts 52, to webs 53 formed on the upper side'or top plate 54 of the press. 7 v

The top plate 54 has a series of strengthening ribs or webs 55 shorter than the webs with which the cap-plate is secured. The top plate 54 and the cap-plate 53 together form-a water receptacle or chamber 56 on the top of the .press' which discharges throughthe opening 57and by means of a pipe 58 carries the water, preferably, back to the freezing tank of the ice-machine, at the same'time carrying away the entrained air. In addition to the top plate 54 the press has a bottom plate 59, the two being ofa form illustrated in Figs. 5, 6 and 7.

The top and bottom of the press have each two series of short grooves 60, and a central series of longer grooves 61. These grooves 1 channels .67, each of which opens into thematch substantially but to insure the proper oper tion and to form distributing reservoirs for the water there are spaces or passages 62 and 63 on opposite sides of thecentral series of grooves. The grooves 60 match with a series of grooves 64 on each side of the press.

In Fig. 8 the parts are shown assembled, that is, in this case, the bottom and sides are shown in the form of a U-shaped part having strengthening webs and a heavy base resting upon a base-block, while the upper or top plate is shownas fitting over the enlarged heads of the side plates and as having a series of bosses 65 to which the cap-plate 56 is secured by a series of bolts 66, substantially as described.

In the top plate are a series of vertical different described channels of the top-plate plunger will on its return, not only take.

care of the water ordinarily remaining behind, but will also rapidly discharge the surplus water.

Secured to a bracket on the end of each press is a cylinder 71 in which is operated a piston 72. The piston 72 has a rod 73, whose .head 74 lies in a recess 75 in the top of an end-gate 76, which is reciprocated to open and close the end of the press.

Secured in the head of the press is a block 77 within which-the end-gate fits. The endgate has at each side projecting flanges 78 and in the center projecting ribs 79 in squared or checkered pattern, as shown in Fig. 12. The blocks 77 have correspondingly projecting flanges 80 and the flanges on the end-gate and on the blocks are beveled correspondingly so that the end-gate in operation rides downupon these inclines at Cut into the inner face of the end-gate is a recess 81, covered by a perforated plate 82, and having communicating with it exit passages 83 leading out through the top of the end-gate. The purpose of this is to permit the escape of any surplus water which may be forced forward ahead of the-ice-block. The water outlet may be'discharged at any place, as, for example, it may lead into one of the return pipes.

Within each press are a series of perforated plates 90 and 91 corresponding in dimensions and form with the relative sides of the press.

In the illustrations I have, through the larger part of the figures, merely indicated the perforations, showing in other sections or smaller parts of the figures, how numerous arethe perforations in actual use. I In a regelation machine of which this press is a component part. the ice-spicules are formed in a water-tank by the operation of constantly shifting knives upon the sheet of ice formed on the surface of rotating freezing .cylinders. The ice-spicules are confined within'a trough, as illustrated in my previously'cited application for ice-machines, and all of the features and parts of the ice-machine which produce the ice and form the spicules are carefully correlated to produce the ice-spicules in the exactquantities required for the given ice-presses.

The rotary or centrifugal pump operates with carefully determined capacity so as to move the waterfand the ice-spicules in the proper proportions and so as to feed the commin'gled water and -ice-spicules to the presses in a quantity which will supply with out overcrowding the pipes.

The inflow of the ice is through (see Fig. 14) a main pipe 100, which has two branches 101 and 102. In this illustration, where two presses are employed, the pipes 58 which carry the water and air from the top of each press lead respectively into sections of a pipe 103, valved on each side, as indicated, rather than illustrated, at 104 and 105, and this pipe 103 discharges on the two sides into return water pipes 106 and 107, which lead back tothe water-tank of the ice-machine.

108 represents a pipe leading from the. pipe 100 in advance of the branches 101 and 102 and communicating with the pressuregage 109. This pressure-gage is an essential and important feature of the machine for by it the operator determines the pressure in either cylinder which indicates to him when he shall pull the lever which reverses the operation, permitting one press to compress and regeal the ice, While the other is filled from its branch pipe. This method turns upon a balancing of pressures. It has been found almost impracticable toiemploy automatic valve connections for the presses, and it has been discovered that the pressure may be made to govern automatically the action of the feed-pipes. By having the pipes enter the bottom of the press the air which is entrained more readily finds its way uppipes 58.

In the operation of an ice-machine the charged at the same time through thehandling of the valve levers is a most important feature. It has been determined that approximately 500 pounds is an approved pressure in'the ice-press.

Let it be supposed that the left-hand press is taking the charge of ice-spicules and waterf Theleverman at the rear of the motors will note the gage which indicates the pressure of ice and which shows when the chamber of an ioepress contains all the oommin-.

. ing the intake port. At this point the leverman pulls the lever of the valve controlling the right-hand press toward him, thus pulling back the valve piston which opens the port and allows a charge of motive fluid to come in front of the plunger of the righthand motor-cylinder. The leverman then throws the left-hand lever forward and thus opens the port to admit the motive fluid behind the plunger so that the left-hand press shall have its plunger start forward to com- -the top.

press the commingled ice and water. When the pressure in the left-hand chamber has risen to about 500 lbs, the leverman then pulls the left-hand lever to its middle or neutral position, stopping further action. He then pulls the lever on the smaller lefthand valve casing so that motive fluidis permitted to How under the piston of the gate cylinder raising theend-gate so that the block of ice may be pushed out. The ice-block is pushed out by the operation of the plunger brought into action by again throwing the left-hand main valve forward from the neutral position. The leverman then reverses the lever of the gate cylinder valve and permits the motive fluid to flow above the plunger to close the end-gate. The right-hand press chamber is now filling,

and when it reaches the proper point as shown by the ice-pressure gage, the above described operation is repeated on the righthand side of the machine.

T claim 1. A press for a regealed ice machine having valveless ports for receiving the comminglcd spicules and water from a conveying means.

2. In a pressing apparatus for a regealed ice machine. the combination of a pair or more of -presses to receive commingled spicules and water. a conveying pipe for the ice spicules and water, branch pines leading .from the conveying pipes to the press, a

valveless port in the bottom of each press,

each port in turn receiving a supply of spicules and water until the pressure and advancing mass cuts ofi the supply to that press.

3. In a regelation ice-press. the combination of a feed-pipe for ice-spicules and wafer. press-cylinders, branch-pipes leading from the feed pipe to each press-cylinder.

and a pressure-gage pipe communicating with the feed-pipe in advance of the branchpipes. v

4. In a press for a regelation ice-machlne. the combination of a press-cylinder, a feed- -pipe leading into the bottom of the cylinder, a pipe communicating, with the top of H the press-cylinder and leading back the cold water to the ice-forming part of the machine. v

In a i'egelation ice-press. a cylinder having grooved sides top and bottom, the top and bottom having a series of central grooves. a series of grooves on each side of the central grooves and a passage between each of the series of rooves in the'sideand the central series, an discharge channels at 6. In a regelation ice press, a cylinder having a series of vertical passages on the sides, a series of horizontal passages in the bottom and top, a series of vertical 'disv charge channels in the top, and a discharge mula'ted water and air are carried to the chamber communicating with the discharge; discharge chamber. 1'0 passages. y In testimony whereof I afiix my signa- 7. In a regelation ice-press, the combinature, in presence of two witnesses. 5 tion with the cylinder, of a chamber above the I DANIEL L. HOLDEN.

cylinder, 21 series of matching grooves about Witnesses: the interior of the cylinder, and vertical 0. H. ELDRIDGE,

channels at the top through which the accu- ARTHUR E. WALRA-DT. 

